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The 636 area code is located in the state of Missouri, and according to Intelius data, covers roughly 977,721 phone numbers. Saint Louis Jefferson is the largest city within this area code with a population of about 990,414.
Have you received a call from a number with a 636 area code? Figure out who is calling you by performing a reverse phone lookup search. Intelius can provide you with a phone report that includes (when available) original line type and carrier, the number owner’s name, last known address and past addresses, age, possible relatives, and more.
| County | Saint Louis |
|---|---|
| Population | 990,414 |
| County | Saint Charles |
|---|---|
| Population | 413,803 |
| County | Jefferson |
|---|---|
| Population | 229,336 |
| County | Franklin |
|---|---|
| Population | 105,879 |
